LTC3305_15 Datasheet, PDF (2/28 Pages) Linear Technology – Lead-Acid Battery Balancer

LTC3305
Absolute Maximum Ratings
(Note 1)
Stack Voltage, V4 to GND..........................................68V
Battery Voltages, V4 to V3, V3 to V2, V2 to V1,
V1 to GND................................................... –0.3V to 20V
Auxiliary Cell Voltage, AUXP to AUXN......... –0.3V to 20V
V_REG Voltage................................................. –0.3V to 6V
V_H, V_L Voltage...... –0.3V to Lesser of 6V or (V_REG+0.3V)
UVFLT, OVFLT, PTCFLT, BAL, DONE, BATX,
BATY Voltage................................................ –0.3V to 6V
EN1, EN2, MODE, TERM1, TERM2
Voltage................. –0.3V to Lesser of 6V or (V_REG+0.3V)
NGATE1, NGATE2, NGATE3, NGATE4, NGATE8, NGATE9
Voltage............... –0.3V to Lesser of 68V or (V4+0.3V)
NGATE5, NGATE6, NGATE7
Voltage............... (Greater of –0.3V or BOOST–68V) to
(BOOST+0.3V)*
UVFLT, OVFLT, PTCFLT, BAL, DONE, BATX,
BATY Current..........................................................10mA
I_SET Current...............................................................1mA
CP, CM Current.......................................................50mA
Operating Junction Temperature Range
(Notes 2, 3)............................................. –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec).................... 300°C
*The BOOST voltage is generated by the LTC3305 and is typically 8.45V higher than V4.
Pin Configuration
BOOST 1
V4 2
V3 3
AUXP 4
AUXN 5
V2 6
V1 7
NGATE1 8
NGATE2 9
NGATE3 10
NGATE4 11
NGATE5 12
NGATE6 13
NGATE7 14
NGATE8 15
NGATE9 16
BATX 17
BATY 18
OVFLT 19
TOP VIEW
39
GND
38 CM
37 CP
36 NC
35 MODE
34 EN1
33 EN2
32 TERM1
31 TERM2
30 V_REG
29 I_SET
28 V_H
27 V_L
26 CTBAT
25 CTON
24 CTOFF
23 PTCFLT
22 DONE
21 BAL
20 UVFLT
FE PACKAGE
38-LEAD PLASTIC TSSOP
θ_JA = 28°C/W
EXPOSED PAD (PIN 39) IS GND, MUST BE SOLDERED TO PCB
NC = No Connect
Order Information
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3305EFE#PBF
LTC3305EFE#TRPBF
LTC3305 FE
38-Lead Plastic TSSOP
–40ºC to 125°C
LTC3305IFE#PBF
LTC3305IFE#TRPBF
LTC3305 FE
38-Lead Plastic TSSOP
–40ºC to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
3305f
2
For more information www.linear.com/LTC3305